摘要
上承式拱桥是拱桥类型中的一种重要形式,由于其历史悠久、桥式优美、构造简单、受力明确,在我国的公路、铁路桥梁上应用广泛。根据桥址所处的地形地貌、地层地质等情况,综合考虑河道条件、景观效果和技术经济等多种因素,本文拟设计190m的上承式钢筋混凝土拱桥。通过对该拱桥的主要设计参数进行比选研究,确定主桥的详细结构尺寸,并基于Midas软件建立该拱桥的有限元模型,对其进行静力、动力、稳定性等方面的计算分析。结果表明,该拱桥的各项指标满足设计和规范要求。
Deck arch bridge is an important form of arch bridge.Because of its long history,beautiful form,simple structure and clear stress,it is widely used in highway and railway bridges in China.According to the landform,stratum geology and other conditions of the bridge site,and comprehensively considering river conditions,landscape effect,technology and economy and other factors,190m reinforced concrete deck arch bridge is proposed in this study.Firstly,through the comparison and selection of the main design parameters of the arch bridge,the detailed structural dimensions of the main bridge are determined,and the finite element model of the arch bridge is established based on MIDAS software to calculate and analyze its static,dynamic and stability.The results show that the indices of the arch bridge meet the requirements of the design and specifications.
出处
《城市建筑》
2022年第8期138-140,共3页
Urbanism and Architecture
基金
南京市建设系统科技计划项目(Ks2153)。
关键词
上承式拱桥
钢筋混凝土拱桥
结构设计
有限元
deck arch bridge
reinforced concrete arch bridge
structural design
finite element
作者简介
段晓伟(1994-),男,硕士,助理工程师。研究方向:桥梁工程。
